[tuneup.c] start from 4 limbs for mpfr_div_threshold

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@12361 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 2 insertions, 2 deletions

diff --git a/tune/tuneup.c b/tune/tuneup.c
index d0bba0210..56eea24eb 100644
--- a/tune/tuneup.c
+++ b/tune/tuneup.c
@@ -492,7 +492,7 @@ tune_simple_func (mpfr_prec_t *threshold,
       if (verbose)
         printf ("Oops: even for precision %lu, algo 2 seems to be faster!\n",
                 (unsigned long) pmin);
-      *threshold = MPFR_PREC_MIN;
+      *threshold = pmin;
       return;
     }
   if (d >= 1.00)
@@ -1093,7 +1093,7 @@ all (const char *filename)
   if (verbose)
     printf ("Tuning mpfr_div...\n");
   tune_simple_func (&mpfr_div_threshold, speed_mpfr_div,
-                    2*GMP_NUMB_BITS+1);
+                    3*GMP_NUMB_BITS+1);
   fprintf (f, "#define MPFR_DIV_THRESHOLD %lu /* limbs */\n",
            (unsigned long) (mpfr_div_threshold - 1) / GMP_NUMB_BITS + 1);